<template>
  <div class="header">
      <!-- 折叠按钮 -->
      <div class="header-left">
          <img class="logo" src="../assets/img/logo.svg" alt="" />
          <div class="web-title">后台管理系统</div>
          <div class="collapse-btn" @click="collapseChage">
              <el-icon v-if="sidebar.collapse">
                  <Expand />
              </el-icon>
              <el-icon v-else>
                  <Fold />
              </el-icon>
          </div>
      </div>
      <div class="header-right">
          <div class="header-user-con">
              <div class="btn-icon" @click="router.push('/theme')">
                  <el-tooltip effect="dark" content="设置主题" placement="bottom">
                      <i class="el-icon-lx-skin"></i>
                  </el-tooltip>
              </div>
              <div class="btn-icon" @click="router.push('/ucenter')">
                  <el-tooltip
                      effect="dark"
                      :content="message ? `有${message}条未读消息` : `消息中心`"
                      placement="bottom"
                  >
                      <i class="el-icon-lx-notice"></i>
                  </el-tooltip>
                  <span class="btn-bell-badge" v-if="message"></span>
              </div>
              <div class="btn-icon" @click="setFullScreen">
                  <el-tooltip effect="dark" content="全屏" placement="bottom">
                      <i class="el-icon-lx-full"></i>
                  </el-tooltip>
              </div>
              <!-- 用户头像 -->
              <el-avatar class="user-avator" :size="30" :src="imgurl" />
              <!-- 用户名下拉菜单 -->
              <el-dropdown class="user-name" trigger="click" @command="handleCommand">
                  <span class="el-dropdown-link">
                      {{ username }}
                      <el-icon class="el-icon--right">
                          <arrow-down />
                      </el-icon>
                  </span>
                  <template #dropdown>
                      <el-dropdown-menu>
                          <a href="https://github.com/lin-xin/vue-manage-system" target="_blank">
                              <el-dropdown-item>项目仓库</el-dropdown-item>
                          </a>
                          <a href="https://lin-xin.gitee.io/example/vuems-doc/" target="_blank">
                              <el-dropdown-item>官方文档</el-dropdown-item>
                          </a>
                          <el-dropdown-item command="user">个人中心</el-dropdown-item>
                          <el-dropdown-item divided command="loginout">退出登录</el-dropdown-item>
                      </el-dropdown-menu>
                  </template>
              </el-dropdown>
          </div>
      </div>
  </div>
</template>
<script setup lang="ts">
import { onMounted } from 'vue';
import { useSidebarStore } from '../store/sidebar';
import { useRouter } from 'vue-router';
import imgurl from '../assets/img/img.jpg';

const username: string | null = localStorage.getItem('vuems_name');
const message: number = 2;

const sidebar = useSidebarStore();
// 侧边栏折叠
const collapseChage = () => {
  sidebar.handleCollapse();
};

onMounted(() => {
  if (document.body.clientWidth < 1500) {
      collapseChage();
  }
});

// 用户名下拉菜单选择事件
const router = useRouter();
const handleCommand = (command: string) => {
  if (command == 'loginout') {
      localStorage.removeItem('vuems_name');
      router.push('/login');
  } else if (command == 'user') {
      router.push('/ucenter');
  }
};

const setFullScreen = () => {
  if (document.fullscreenElement) {
      document.exitFullscreen();
  } else {
      document.body.requestFullscreen.call(document.body);
  }
};
</script>
<style scoped>
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: border-box;
  width: 100%;
  height: 70px;
  color: var(--header-text-color);
  background-color: var(--header-bg-color);
  border-bottom: 1px solid #ddd;
}

.header-left {
  display: flex;
  align-items: center;
  padding-left: 20px;
  height: 100%;
}

.logo {
  width: 35px;
}

.web-title {
  margin: 0 40px 0 10px;
  font-size: 22px;
}

.collapse-btn {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  padding: 0 10px;
  cursor: pointer;
  opacity: 0.8;
  font-size: 22px;
}

.collapse-btn:hover {
  opacity: 1;
}

.header-right {
  float: right;
  padding-right: 50px;
}

.header-user-con {
  display: flex;
  height: 70px;
  align-items: center;
}

.btn-fullscreen {
  transform: rotate(45deg);
  margin-right: 5px;
  font-size: 24px;
}

.btn-icon {
  position: relative;
  width: 30px;
  height: 30px;
  text-align: center;
  cursor: pointer;
  display: flex;
  align-items: center;
  color: var(--header-text-color);
  margin: 0 5px;
  font-size: 20px;
}

.btn-bell-badge {
  position: absolute;
  right: 4px;
  top: 0px;
  width: 8px;
  height: 8px;
  border-radius: 4px;
  background: #f56c6c;
  color: var(--header-text-color);
}

.user-avator {
  margin: 0 10px 0 20px;
}

.el-dropdown-link {
  color: var(--header-text-color);
  cursor: pointer;
  display: flex;
  align-items: center;
}

.el-dropdown-menu__item {
  text-align: center;
}
</style>
